SHIMANO TIAGRA - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width - The SHIMANO TIAGRA bottom bracket uses a new seal construction for long-lasting performance
SPECIFICATIONS:
| Model No. | BB-RS501 |
| Series | ALFINE S7000/S700 Series |
| Weight | 95g |
| Hollowtech II Bottom Bracket | Yes |
| Threaded bottom bracket shell width | 68 & 70mm |